Use the search function to find "machine doubling." True doubled dies are collectable, but other types of non-collectable non-error doubling exists.
You are finding there is a lot more to identifying a collectable mint error than just seeing something looking doubled. This is the same with all minet errors. Most odd looking things are non-collectable damage unimportant imperfections.
True doubled dies are made when the dies created for striking coins are accidently given a doubled image. The flat and shelf-like areas your coin is showing in what is easily mistaken as being a doubled area are the dead giveaway for worthless
Machine Doubling. The die was loose in the press and so "stuttered/bounced" and plowed the metal sideways making the flat shelving near the numbers/letters.
There is a lot of discussion on this forum of people trying to learn the difference.
When you do not find a match online to a doubled die, you need to start looking into different things like
Machine Doubling,
Die Deterioration Doubling etc. As to finding a new doubled die variety (especially one that will be worth anything and not some very minute ), unless it is a newly minted coin, it likely not going to happen. Yes, they likely have all been documented.
There have been so very many people daily searching for the varieties for so many years now (especially since microscopes became so inexpensive around 2 decades ago) that the new ones reported each year are from newly minted coins. Those stop coming in pretty much after about 6-8 months, and they are typically very small spreads and hard to see.
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Kennedy halveshttps://ln5.sync.com/dl/7ca91bdd0/w...i3b-rbj9fir2 
Posted 09/30/2023 2:55 pm
